class Settings:
    def __init__(self):
        """初始化游戏的设置"""
        self.screen_width = 650
        self.screen_height =750
        self.bg_color = (230, 230, 230)

        # 飞船设置
        self.ship_speed = 0.5

        #子弹设置
        self.bullet_speed = 0.5
        self.bullet_width = 3
        self.bullet_height = 15
        self.bullet_color = (60, 60, 60)
        self.bullet_time = 1000